KR980008639U - Bearing cover of centrifugal pump - Google Patents
Bearing cover of centrifugal pump Download PDFInfo
- Publication number
- KR980008639U KR980008639U KR2019960020501U KR19960020501U KR980008639U KR 980008639 U KR980008639 U KR 980008639U KR 2019960020501 U KR2019960020501 U KR 2019960020501U KR 19960020501 U KR19960020501 U KR 19960020501U KR 980008639 U KR980008639 U KR 980008639U
- Authority
- KR
- South Korea
- Prior art keywords
- bearing
- cover
- groove
- oil
- bearing housing
- Prior art date
Links
- 230000008878 coupling Effects 0.000 claims abstract description 40
- 238000010168 coupling process Methods 0.000 claims abstract description 40
- 238000005859 coupling reaction Methods 0.000 claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 3
- 238000003780 insertion Methods 0.000 abstract description 4
- 230000037431 insertion Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/0462—Bearing cartridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
본 고안은 구조를 2부분으로 나누어 상호 조립결합하고 각 조립체에 오링을 장착하여 회전축과 베어링하우징과의 기밀을 완벽하게 유지하게 한 원심펌프의 베어링커버에 관한 것으로, 펌프의 베어링하우징에 주입된 오일의 누유를 방지하기 위하여 회전축을 지지하는 베어링에 결합된 베어링커버에 있어서, 내경에 다수의 래비린쓰구멍이 형성되며 베어링하우징과 긴밀히 결합되도록 홈에 오링이 장착되며 상기 레비린쓰구멍으로 유입된 오일을 베어링하우징 내부로 흘러보내기 위한 안내홀이 상기 레비린쓰구멍에 연통되어 형성되며 측면에 제1결합홈이 형성됨과 동시에 제1결합편이 돌설된 제1커버체와, 회전축과 긴밀히 밀착되도록 내경의 홈에 오링이 장착되고, 상기 제1결합체와 결합고정되는 측면에 상기 제1결합체의 제1결합홈에 삽입되는 제2결합편이 돌설됨과 동시에 상기 제1결합체의 제1결합편이 삽입고정되는 제2결합홈이 형성된 제2커버체로 구성되어 있기 때문에 외부의 이물질이 베어링커버를 통해 베어링하우징의 내부로 침투하여 오일과 섞이게 되는 것이 방지되고 오일이 베어링커버의 외부로 누유되는 것이 방지되어 베어링의 수명이 향상되는 효과가 있다.The present invention relates to a bearing cover of a centrifugal pump in which the structure is divided into two parts and mutually assembled, and an O-ring is attached to each assembly to completely maintain the airtightness between the rotating shaft and the bearing housing. The oil injected into the bearing housing of the pump In the bearing cover coupled to the bearing supporting the rotating shaft to prevent leakage of oil, a plurality of labyrinth holes are formed in the inner diameter, the O-ring is mounted in the groove so as to be closely coupled with the bearing housing, the oil introduced into the Levirinth hole The guide hole for flowing the inside of the bearing housing is formed in communication with the Levi Linth hole, the first cover groove is formed on the side, and the first cover body in which the first coupling piece protrudes, and the groove of the inner diameter so as to be in close contact with the rotating shaft. The O-ring is mounted on, and the first insertion groove is inserted into the first coupling groove of the first coupling member on the side that is fixed to the first coupling member Since the two joining pieces are protruded and composed of a second cover body having a second joining groove into which the first joining piece of the first joining member is inserted and fixed, foreign matter penetrates into the bearing housing through the bearing cover to be mixed with oil. It is prevented that the oil is prevented from leaking to the outside of the bearing cover has the effect of improving the life of the bearing.
Description
제1도는 본 고안의 원심펌프의 베어링커버를 나타낸 것으로, (가)는 분해된 상태의 일부절개 사시도이고, (나)는 결합된 상태의 단면도이다.Figure 1 shows a bearing cover of the centrifugal pump of the present invention, (a) is a partially cutaway perspective view of the disassembled state, (b) is a cross-sectional view of the coupled state.
제2도는 종래의 기술이 적용된 원심펌프의 구성을 나타낸 단면도이다.2 is a cross-sectional view showing the configuration of a centrifugal pump to which the prior art is applied.
제3도는 종래의 원심펌프의 베어링커버를 나타낸 것으로, (가)는 평면도이고, (나)는 측단면도이다.Figure 3 shows a bearing cover of a conventional centrifugal pump, (a) is a plan view, (b) is a side cross-sectional view.
*도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings
10 : 제1커버체 20 : 제2커버체 14, 24 : 오링10: first cover body 20: second cover body 14, 24: O-ring
16 : 제1결합홈 18 : 제1결합편 22 : 래비린쓰구멍16: first coupling groove 18: first coupling piece 22: labyrinth hole
26 : 제2결합홈 28 : 제2결합편 19 : 안내홀26: the second coupling groove 28: the second coupling piece 19: guide hole
본 고안은 원심펌프의 베어링커버에 관한 것으로, 더욱 상세하게는 구조를 2부분으로 나누어 상호 조립결합하고 각 조립체에 오링을 장착하여 회전축과 베어링하우징과의 기밀을 완벽하게 유지함으로서 베어링하우징 내부로 외부이물질의 유입과 베어링하우징 외부로 오일의 누유를 방지할 수 있는 원심펌프의 베어링커버에 관한 것이다.The present invention relates to a bearing cover of a centrifugal pump. More specifically, the structure is divided into two parts, and the structures are mutually assembled and O-rings are attached to each assembly to completely maintain the airtightness between the rotating shaft and the bearing housing. The present invention relates to a bearing cover of a centrifugal pump capable of preventing the inflow of foreign substances and leakage of oil to the outside of the bearing housing.
일반적으로, 원심펌프는 내부에 장착된 임펠러를 고속으로 회전시켜 발생된 내외부간의 큰 압력차에 의해 하부의 유체를 상부로 끌어올리는 장치로서, 회전에 따른 진동, 사용환경(주로 농어촌, 공사현장등)등에 따라 부품의 손상이 심하고 고장이 빈번하게 발생하는 데, 이에 따라 내구력이 크고 진동시 발생하는 마찰을 최소화할 수 있는 윤활장치가 요구된다. 이하, 종래의 원심펌프의 베어링커버에 대하여 설명하면 다음과 같다. 제2도는 종래의 기술이 적용된 원심펌프의 구성을 나타낸 단면도이다.In general, the centrifugal pump is a device that raises the lower fluid to the upper by a large pressure difference between the inside and the outside generated by rotating the impeller mounted at a high speed, and the vibration, the use environment (mainly farm and fishing village, construction site, etc.) The parts are severely damaged and breakdowns frequently occur. Accordingly, a lubrication device is required that has a high durability and minimizes friction generated during vibration. Hereinafter, the bearing cover of the conventional centrifugal pump will be described. 2 is a cross-sectional view showing the configuration of a centrifugal pump to which the prior art is applied.
제2도에 나타낸 바와 같이, 원심펌프는 몸체를 구성하는 케이싱(110) 및 베어링 하우징(120)과, 상기 케이싱(110) 과 베어링 하우징(120) 사이에 일체로 조립되어 유입실을 형성하는 케이싱커버(130)와, 상기 베어링하우징(120)의 내부에 장착된 베어링(140), (142)에 의해 지지되어 전동기(200)의 구동력을 전달받는 회전축(130)과, 상기 회전축(130)의 일단에 일체로 장착되어 상기 케이싱(110) 내부의 유입실로 물을 흡입하여 토출시키는 임펠러(160)로 구성된다.As shown in FIG. 2, the centrifugal pump includes a casing 110 and a bearing housing 120 constituting a body, and a casing integrally assembled between the casing 110 and the bearing housing 120 to form an inflow chamber. The rotary shaft 130 is supported by the cover 130, the bearings 140 and 142 mounted inside the bearing housing 120 to receive the driving force of the electric motor 200, and the rotary shaft 130 of the It is integrally mounted at one end and consists of an impeller 160 for sucking and discharging water into the inflow chamber inside the casing 110.
상기 구성을 갖는 원심펌프의 전동기(200)에 전원이 공급되면, 발생된 회전력에 의해 회전축(130)과 그 일단에 장착된 임펠러(160)가 동시에 회전하게 된다. 임펠러(160)가 고속으로 회전하면, 케이싱(110) 내부의 유입실을 진공상태로 만들고, 이때 펌프내외부 사이에 발생한 압력차에 의해 외부의 유체가 유입실로 강제이송된다. 유입실 내부로 강제이송된 유체는 임펠러(160)의 회전에 의해 상부로 이송되어 강력한 압력에 의해 외부로 토출된다. 이때, 어떤 산업장치이던간에 회전축(130)을 지지하기 위하여 베어링이 사용되는데, 보통 ZZ-타입(type)의 베어링이 많이 사용되며 본 고안의 기술이 적용된 원심펌프에도 이 베어링이 사용된다. 이 ZZ-타입의 베어링(140), (142)은 그 내부의 볼주위에 그리이스(grease)를 주입시켜 볼의 윤할역활을 하도록 하였다. 하지만, 이 경우 베어링(140), (142)의 수명이 단축되는 폐단이 있었다.When power is supplied to the motor 200 of the centrifugal pump having the above configuration, the rotating shaft 130 and the impeller 160 mounted at one end thereof rotate by the generated rotational force at the same time. When the impeller 160 rotates at a high speed, the inflow chamber inside the casing 110 is vacuumed, and the external fluid is forced to the inflow chamber by the pressure difference generated between the inside and the outside of the pump. The fluid forcedly transferred into the inflow chamber is transferred upward by the rotation of the impeller 160 and discharged to the outside by the strong pressure. At this time, a bearing is used to support the rotating shaft 130 in any industrial device, usually a ZZ-type bearing is used a lot and this bearing is also used in the centrifugal pump to which the technique of the present invention is applied. The bearings 140 and 142 of the ZZ-type are injected grease around the balls therein to play the role of lubrication of the balls. However, in this case, there were closed ends in which the life of the bearings 140 and 142 was shortened.
따라서, 이러한 폐단을 보완하기 위하여 회학용의 프로세스 (process) 펌프나 API펌프에서는 베어링 하우징(120) 내부에 오일을 채우는 유욕법(oil bath type)을 이용함으로서 베어링(140), (142)의 수명을 연장시켰다.Therefore, in order to compensate for these closed ends, the process (process) pump or the API pump for the use of oil bath (oil bath type) to fill the oil in the bearing housing 120 (oil bath type) by using the life of the bearing (140, 142) Extended.
하지만, 이 경우 베어링하우징(120) 내부에 주입된 오일이 외부로 누유되지 않아야 함과 동시에 외부의 이물질도 내부로 침투하지 않아야 하는데, 이러한 점을 실현하기 위하여 회전축(130)을 지지하는 베어링(140), (142)에 결합되는 베어링커버(150)가 필요로 되었다. 이하, 본 고안의 관건이 되는 베어링커버(150)에 대하여 자세하게 설명하면 다음과 같다. 제3도는 종래의 원심펌프의 베어링커버를 나타낸 것으로, (가)는 평면도이고, (나)는 측단면도이다. 제3도에 나타낸 바와 같이, 종래의 베어링커버(150)는 회전축(130)에 삽입되기 위하여 중앙에 삽입구멍이 형성된 원판체로서 그 내부에 래비린쓰(labyrinth)구멍(152)이 형성되어 외부로 오일이 누유되는 것을 방지하고, 래비린쓰구멍(152)에 흘러들어온 오일은 안내홀(154)에 모이게 되어 베어링 하우징(120)의 내부로 계속 흘러 들어가게 된다.However, in this case, the oil injected into the bearing housing 120 should not leak to the outside, and at the same time, no foreign matter should penetrate into the inside, and the bearing 140 supporting the rotating shaft 130 to realize this point. ), A bearing cover 150 coupled to 142 is required. Hereinafter, described in detail with respect to the bearing cover 150 which is the key of the present invention. Figure 3 shows a bearing cover of a conventional centrifugal pump, (a) is a plan view, (b) is a side cross-sectional view. As shown in FIG. 3, the conventional bearing cover 150 is a disc body having an insertion hole formed at the center thereof so as to be inserted into the rotating shaft 130, and a labyrinth hole 152 is formed therein, and thus the outside is formed. The furnace oil is prevented from leaking, and the oil flowing into the labyrinth hole 152 is collected in the guide hole 154 and continues to flow into the bearing housing 120.
상기 안내홀(154)은 래비린쓰구멍(152)과 연통되어 베어링하우징(120) 내부로 연결된 통로로서 래비린쓰구멍(152)에 유입된 오일을 다시 베어링하우징(120)내부로 흘러보낸다.The guide hole 154 communicates with the labyrinth hole 152 and is connected to the inside of the bearing housing 120 to flow oil introduced into the labyrinth hole 152 back into the bearing housing 120.
또한, 오일에 외부의 이물질이 섞이는 문제는 제조공정시 정밀가공에 의하여 베어링커버(150)와 베어링 하우징(120)의 조립오차를 최소화하여 틈새를 배제함으로서 베어링 하우징(120)내부로 이물질의 침투를 방지하여 해결하였다. 그러나, 베어링커버(150)의 외경부의 가공이 완벽하지 못하면, 베어링 하우징(120)과 베어링커버(150) 사이에 생긴 틈새로 먼지와 같은 이물질이 침투하여 오일과 섞이게 되고, 이로 인하여 베어링(140), (142) 내부의 볼이 이물질에 의해 손상되어 베어링 수명이 단축됨과 동시에 오일의 점도변화를 초래하는 문제점이 있었다.In addition, the problem that the foreign matter is mixed in the oil is minimized assembling error of the bearing cover 150 and the bearing housing 120 by precision processing during the manufacturing process to eliminate the gap to prevent the infiltration of foreign matter into the bearing housing 120. It solved by preventing. However, if the machining of the outer diameter portion of the bearing cover 150 is not perfect, foreign matters such as dust penetrate into the gap formed between the bearing housing 120 and the bearing cover 150 to be mixed with oil, thereby causing the bearing 140. , (142) There was a problem that the ball inside the ball is damaged by foreign matters, resulting in a shortened bearing life and a change in viscosity of the oil.
또한, 회전축(130)을 따라 베어링커버(150)의 외부로 오일이 빈번하게 누유되는 문제점도 있는데, 이것은 오일의 누유를 방지하는 래비린쓰구멍(152)의 한계점인 것이다.In addition, there is a problem that the oil is frequently leaked to the outside of the bearing cover 150 along the rotating shaft 130, which is the limit of the labyrinth hole 152 to prevent the oil leakage.
본 고안은 상기 문제점을 감안하여 안출된 것으로, 그 목적으로 하는 바는, 베어링하우징에 주입된 오일의 누유형상을 방지함과 동시에 외부의 이물질이 베어링하우징 내부로 침투하는 것을 방지할 수 있는 원심펌프의 베어링커버를 제공함에 있다.The present invention has been devised in view of the above problems, and its purpose is to provide a centrifugal pump that can prevent the leakage of oil injected into the bearing housing and prevent foreign substances from penetrating into the bearing housing. To provide a bearing cover.
상기 목적을 달성하기 위하여 본 고안의 원심펌프의 베어링커버는, 펌프의 베어링하우징에 주입된 오일의 누유를 방지하기 위하여 회전축을 지지하는 베어링에 결합된 원심펌프의 베어링커버에 있어서, 내경에 다수의 래비린쓰구멍이 형성되며 베어링하우징과 긴밀히 결합되도록 외경의 홈에 오링이 장착되며 상기 레비린쓰구멍으로 유입된 오일을 베어링하우징 내부로 흘러보내기 위한 안내홀이 상기 레비린쓰구멍에 연통되어 형성되며 측면에 제1결합홈이 형성됨과 동시에 제1결합편이 돌설된 제1커버체와, 회전축과 긴밀히 밀착되도록 내경의 홈에 오링이 장착되고, 상기 제1결합체와 결합고정되는 측면에 상기 제1결합체의 제1결합홈에 삽입되는 제2결합편이 돌설됨과 동시에 상기 제1결합체의 제1결합편이 삽입고정되는 제2결합홈이 형성된 제2커버체로 구성된다.In order to achieve the above object, the bearing cover of the centrifugal pump of the present invention, in the bearing cover of the centrifugal pump coupled to the bearing for supporting the rotating shaft to prevent leakage of oil injected into the bearing housing of the pump, a plurality of inner diameter The labyrinth hole is formed and an O-ring is mounted in the groove of the outer diameter so as to be closely coupled with the bearing housing, and a guide hole for flowing oil introduced into the labyrinth hole into the bearing housing is formed in communication with the labyrinth hole. The first coupling groove is formed at the same time, the first cover body with the first coupling piece protrudes, and the O-ring is mounted in the groove of the inner diameter so as to be in close contact with the rotating shaft, the side of the first coupling body is fixed to the first coupling body A second coupling piece which is inserted into the first coupling groove and a second coupling groove into which the first coupling piece of the first coupling member is fixed; It consists of body member.
따라서, 본 고안의 원심펌프의 베어링커버는 제1커버체와 제2커버체를 결합편과 결합홈에 의해 상호 결합하고 각 커버체에 오링을 장착하여 회전축과 베어링하우징에 긴밀히 밀착하게 함으로서 외부의 이물질이 베어링커버를 통해 베어링하우징의 내부로 침투하여 오일과 섞이게 되는 것이 방지되고 오일이 베어링커버의 외부로 누유되는 것이 방지되어 베어링의 수명이 향상되는 효과가 있다. 이하, 본 고안의 원심펌프의 베어링커버에 대하여 자세하게 설명한다.Therefore, the bearing cover of the centrifugal pump of the present invention is coupled to the first cover body and the second cover body by a coupling piece and a coupling groove, and the O-rings are attached to each cover body to closely adhere to the rotating shaft and the bearing housing. Foreign matter is prevented from penetrating the inside of the bearing housing through the bearing cover to be mixed with the oil and oil is prevented from leaking to the outside of the bearing cover to improve the life of the bearing. Hereinafter, the bearing cover of the centrifugal pump of the present invention will be described in detail.
제1도는 본 고안의 원심펌프의 베어링커버를 나타낸 것으로, (가)는 분해된 상태의 일부절개 사시도이고, (나)는 결합된 상태의 단면도이다. 제1도에 나타낸 바와같이, 본 고안의 원심펌프의 베어링커버는 제1커버체(10)와 제2커버체(20)가 상호 결합되는 구조이다.Figure 1 shows a bearing cover of the centrifugal pump of the present invention, (a) is a partially cutaway perspective view of the disassembled state, (b) is a cross-sectional view of the coupled state. As shown in FIG. 1, the bearing cover of the centrifugal pump of the present invention has a structure in which the first cover body 10 and the second cover body 20 are coupled to each other.
여기서, 상기 제1커버체(10)는 중앙에 회전축(도시하지 않음)이 삽입되는 삽입홈을 갖는 원판형으로 베어링하우징(도시하지 않음)에 주입된 오일의 누유를 방지하기 위하여 내경에 다수의 래비린쓰구멍(12)을 형성하고, 오일의 누유를 방지하기 위하여 베어링하우징과 결합되는 외경의 홈에 오링(14)을 장착하고, 조립구조를 형성하기 위하여 측면에 제1결합홈(16)을 형성함과 동시에 제1결합편(18)을 돌설하고, 상기 레비린쓰구멍(12)으로 유입된 오일을 베어링하우징으로 흘러보내기 위한 안내홀(19)이 상기 레비린쓰구멍(12)에 연통하여 상기 제1결합편(18)에 형성되는 구조로 되어 있다.Here, the first cover body (10) is a disk having an insertion groove in which a rotating shaft (not shown) is inserted in the center of the plurality of inner diameters to prevent leakage of oil injected into the bearing housing (not shown). In order to form a labyrinth hole (12) and to prevent oil leakage, the O-ring (14) is mounted in the groove of the outer diameter coupled with the bearing housing, and the first coupling groove (16) is formed on the side to form an assembly structure. At the same time, the first coupling piece 18 protrudes, and the guide hole 19 for flowing the oil introduced into the levy lining hole 12 into the bearing housing communicates with the levy lining hole 12. It is a structure formed in the said 1st engagement piece 18. As shown in FIG.
또한, 상기 제2커버체(20)는 중앙에 회전축이 삽입되는 삽입홈을 갖는 원판형으로 회전축과 기밀을 유지하여 오일의 누유가 방지되도록 내경의 홈에 오링(24)을 장착하고, 조립구조를 형성하기 위하여 상기 제1결합체(10)와 결합고정되는 측면에 상기 제1결합체(10)의 제1결합홈(16)에 삽입되는 “┘”자형의 제2결합편(28)을 돌설함과 동시에 상기 제1결합체(10)의 제1결합편(18)이 삽입고정될 수 있도록 제2결합홈(26)을 형성하는 구조로 되어 있다. 이러한 구성으로 된 본 고안의 작용 및 효과를 설명한다. 먼저, 베어링하우징의 내부에 있는 오일은 고속으로 회전하는 회전축에 의하여 윤활작용을 하게 된다.In addition, the second cover body 20 is a disk having an insertion groove into which the rotating shaft is inserted in the center, and the O-ring 24 is mounted in the groove of the inner diameter so as to prevent leakage of oil by keeping the rotating shaft and airtight, and assembling structure. The second coupling piece 28 of the "┘" shape is inserted into the first coupling groove 16 of the first coupling member 10 on the side that is fixed to the first coupling member 10 to form a. At the same time, the first coupling piece 18 of the first assembly 10 has a structure for forming a second coupling groove 26 to be fixed. It describes the operation and effect of the present invention in this configuration. First, the oil inside the bearing housing is lubricated by the rotating shaft rotating at high speed.
이때, 제1결합체(10)의 오링(14)이 베어링하우징과 긴밀히 밀착하여 베어링커버(1)의 외경부를 통해 오일이 외부로 누유되는 것이 방지되고, 제2결합체(24)의 오링(22)이 고속으로 회전하는 회전축과 긴밀히 밀착하여 베어링커버(1)의 내경부를 통해 회전축을 따라 오일이 외부로 누유되는 것이 방지된다.At this time, the O-ring 14 of the first assembly 10 is in close contact with the bearing housing to prevent the oil from leaking to the outside through the outer diameter of the bearing cover 1, and the O-ring 22 of the second assembly 24 is prevented. In close contact with the rotating shaft rotating at high speed, oil is prevented from leaking to the outside along the rotating shaft through the inner diameter portion of the bearing cover 1.
또한, 래비린쓰구멍(22)으로 흘러 들어온 일정량의 오일은 안내홀(19)을 통하여 베어링하우징의 내부로 다시 흘러 들어감으로서 유욕법에 의한 베어링의 윤활작용이 활성화된다.In addition, a certain amount of oil flowing into the labyrinth hole 22 flows back into the bearing housing through the guide hole 19, thereby lubricating the bearing by the oil bath method.
또한, 베어링커버(1)와 회전축 및 베어링하우징 사이의 기밀을 완벽하게 유지한 오링(14), (24)에 의해 외부의 이물질이 베어링하우징 내부로 침투하지 않게 된다.In addition, the foreign materials do not penetrate into the bearing housing by the O-rings 14 and 24 which completely maintain the airtightness between the bearing cover 1 and the rotating shaft and the bearing housing.
한편, 결합편(18), (28)과 결합홈(16), (26)에 의하여 상호결합된 제1커버체(10)와 제2커버체(20)의 결합부의가 다수의 복잡한 단을 이루고 있어 오일이 결합면을 통해 외부로 누유되는 것이 방지된다. 특히, 제1도(나)의 “가”부는 제1커버체(10)와 제2커버체(20)의 내경측 결합면으로서 제조공정시 기밀이 유지되도록 정밀가공을 하여 고속회전하는 회전축의 외경을 따라 흘러들어온 오일이 “가”부로 침투하는 것이 방지된다. 상술한 바와 같은 본 고안의 원심펌프의 베어링커버에 의하면, 제1커버체와 제2커버체를 결합편과 결합홈에 의해 상호 결합하고 각 커버체에 오링을 장착하여 회전축과 베어링하우징에 긴밀히 밀착하게 함으로서 외부의 이물질이 베어링커버를 통해 베어링하우징의 내부로 침투하여 외일과 섞이게 되는 것이 방지되고 오일이 베어링커버의 외부로 누유되는 것이 방지되어 베어링의 수명이 향상되는 효과가 있다.On the other hand, the coupling portion of the first cover body 10 and the second cover body 20 which are mutually coupled by the coupling pieces 18, 28 and the coupling grooves 16, 26 has a number of complicated stages. This prevents oil from leaking out through the mating surfaces. Particularly, the “a” portion of FIG. 1 (b) is an inner diameter coupling surface of the first cover body 10 and the second cover body 20, and is formed on a rotating shaft which rotates at a high speed by precision machining to maintain airtightness during the manufacturing process. The oil flowing along the outer diameter is prevented from penetrating into the "tight" part. According to the bearing cover of the centrifugal pump of the present invention as described above, the first cover body and the second cover body are mutually coupled by the coupling piece and the coupling groove and the O-rings are attached to each cover body to closely adhere to the rotating shaft and the bearing housing. This prevents foreign matter from penetrating into the bearing housing through the bearing cover and mixing with the outside, and prevents oil from leaking to the outside of the bearing cover, thereby improving the life of the bearing.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960020501U KR980008639U (en) | 1996-07-11 | 1996-07-11 | Bearing cover of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019960020501U KR980008639U (en) | 1996-07-11 | 1996-07-11 | Bearing cover of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR980008639U true KR980008639U (en) | 1998-04-30 |
Family
ID=53971086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019960020501U KR980008639U (en) | 1996-07-11 | 1996-07-11 | Bearing cover of centrifugal pump |
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| Country | Link |
|---|---|
| KR (1) | KR980008639U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101237812B1 (en) * | 2011-02-11 | 2013-02-28 | 한국중부발전(주) | Oil Pump Device |
| KR101285104B1 (en) * | 2011-09-19 | 2013-07-17 | 주식회사 나라코퍼레이션 | Variable Speed Fluid Coupling |
| KR200476288Y1 (en) * | 2010-12-31 | 2015-02-12 | 노틸러스효성 주식회사 | Structure for preventing oil passed through of oneway bearing |
| KR101664416B1 (en) * | 2015-08-10 | 2016-10-10 | 남상건 | Bearing Isolator |
| CN107725467A (en) * | 2017-10-27 | 2018-02-23 | 刘铭 | A kind of bearing housing for pump drive |
-
1996
- 1996-07-11 KR KR2019960020501U patent/KR980008639U/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200476288Y1 (en) * | 2010-12-31 | 2015-02-12 | 노틸러스효성 주식회사 | Structure for preventing oil passed through of oneway bearing |
| KR101237812B1 (en) * | 2011-02-11 | 2013-02-28 | 한국중부발전(주) | Oil Pump Device |
| KR101285104B1 (en) * | 2011-09-19 | 2013-07-17 | 주식회사 나라코퍼레이션 | Variable Speed Fluid Coupling |
| KR101664416B1 (en) * | 2015-08-10 | 2016-10-10 | 남상건 | Bearing Isolator |
| CN107725467A (en) * | 2017-10-27 | 2018-02-23 | 刘铭 | A kind of bearing housing for pump drive |
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